Seeking opinions on a basic difference here. How is the difference in ride between the Rangerlifts 2.5" and the SVC collar (unknown exact lift = 2'-2.5") As I understand it the difference is: Rangerlifts: An extender/spacer at the top of the shock assembly. Retains factory shock action and measurements, etc, effectively lifting the truck by lowering the top shock mounting point. SVC collar: retains factory shock mounts and instead loads the spring, or pre-loads it, effectively lifting the truck with the spring. I'm in a 4x2 so no worries or confusion about CV joints. Obviously an alignment will be in order either way. So my question is simply.. stock spring or pre-loaded spring? Posts seem to indicate the preloaded spring offers a desirable stiffening to the front end.